Push button switch



FIG. 1 is a front elevational view of a push button switch showing athird embodiment of our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a top, front and right side perspective view thereof, shown inseparated condition;

FIG. 8 is a bottom, rear and left side perspective view thereof, shownin separated condition;

FIG. 9 is a front elevational view of an actuating part;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a left side view thereof;

FIG. 12 is a right side view thereof; and,

FIG. 13 is a bottom plan view thereof.

The broken lines depict environmental subject matter only and form nopart of the claimed design.

CLAIM The ornamental design for a push button switch, as shown anddescribed.